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Investment Securities - Narrative (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) position	Dec. 31, 2020 USD ($) position	Dec. 31, 2019 USD ($)
Investments, Debt and Equity Securities [Abstract]
Available-for-sale securities, number of positions | position	101	0
Available-for-sale securities, percentage of total securities	28.00%
Available-for-sale securities, number of positions, greater than one year | position	0
Premium related to purchase of state and political subdivisions	$ 6,361,000	$ 6,013,000
Restricted securities	0
Proceeds from sales of securities available-for-sale	63,774,000	21,943,000	$ 4,648,000
Available-for-sale securities, gross realized gains	55,000	1,075,000	19,000
Available-for-sale securities, gross realized losses	$ 4,000	$ 0	$ 0

X

- Definition

The percentage of the number of investment positions in the available-for-sale investments determined to be temporarily impaired.

+ References

No definition available.

+ Details

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X

- Definition

The premium related to the purchase of state and political subdivisions.

+ References

No definition available.

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X

- Definition

Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455

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X

- Definition

Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563

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- Definition

Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563

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- Definition

Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 210
-Section 45
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X

- Definition

Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

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- Definition

Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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